Last Year and This year's Debt Ratio Comparisons. See the Excel file. The two columns of the data represent the debt ratios of last year and this year for the same household. For example, the first row is for one family: current year debt ratio and last year debt ratio. We want to know whether the average household debt ratio is increased. Q We don't have enough statistical evidence to reject the NULL hypothesis. That means, we don't have enough evidence to infer that the ratios are higher this year than last. O Not enough information for me to make that a conclusion Q We have statistical evidence to reject the NULL and accept the alternative hypothesis. That means, we do have enough evidence to infer that the ratios are higher this year than last. 0 We have overwhelming statistical evidence to reject the NULL and accept the alternative hypothesis. That means, we do have overwhelming evidence to infer that the ratios are higher this year than last